5000 PSI Pressure Washer Gun Overview
The 5000 psi pressure washer gun is a short-wand trigger gun rated for a maximum working pressure of 5000 psi (345 bar / 34.5 MPa) and a maximum flow of 12 GPM (about 45 L/min). It sits between the high pressure hose and the nozzle and is used mainly as an accessory for car washing, industrial cleaning and other high pressure washer applications. The 3/8 in swivel inlet, the M22-14mm adapter and the 1/4 in quick connector let the gun mate with most gas and electric pressure washer hose assemblies without extra tools.
Operation is deliberately simple: connect the hose, plug in a nozzle tip, squeeze the trigger and release to stop. The short wand keeps the spray head close to the hand, so the operator can turn the gun freely and re-aim the jet in seconds instead of wrestling a long lance.
Technical Specifications
The published ratings define what the gun can be used for. Values that the factory has not stated are marked as such rather than estimated.
| Parameter | Value | Note |
|---|---|---|
| Maximum working pressure | 5000 psi (345 bar / 34.5 MPa) | Gun rating; do not exceed |
| Maximum flow | 12 GPM (about 45 L/min) | Gun rating |
| Inlet | 3/8 in swivel | Rotates to reduce hose twist |
| Inlet adapter | M22-14mm | Fits standard M22 hose couplings |
| Nozzle connection | 1/4 in quick connector | Plug-in nozzle tips |
| Wand type | Short wand (short gun) | One-hand operation in tight spaces |
| Body | Polymer with ventilation slots | Heat dissipation keeps the handle cooler |
| Trigger | Hold-to-spray, release to stop | No lock-on |
| Net weight | Not published | Confirm with the factory |
| Garden hose compatibility | Not compatible | Do not connect to a faucet |
The pressure and flow ratings describe the gun, not the washer behind it. A machine delivering less than 5000 psi works within the rating; the gun simply never reaches its limit. Weight, minimum starting pressure and nozzle angle options are not published.
Why a Short Wand Works in Tight Spaces
A long lance is efficient for open ground, but it becomes a liability wherever the operator works close to the object or inside a confined area. The short wand trades reach for control, and for most car wash and industrial cleaning stations that is the better trade.
Narrow Space Access
Wheel arches, engine bays, chassis rails, machine frames and corners of a wash bay all sit within arm’s reach. With a short gun the operator can move the muzzle into these gaps and keep spraying while stepping sideways, without the rear of a long lance swinging into walls, vehicles or other people. The gun is also easier to carry around a workpiece and to store on a hook between jobs.
Flexible Spray Direction
Because the wand is short, rotating the gun changes the jet direction immediately: angle down into a wheel, tilt sideways along a panel, then point up under a chassis. The 3/8 in swivel inlet adds freedom at the other end, letting the hose hang naturally while the wrist turns the gun, which prevents the kinking and twisting that stiffens normal gun-and-hose setups. In practice the operator adjusts direction continuously while working, which is exactly what congested cleaning jobs require.
Inlet, Swivel and Connection Options
The gun is built around three connections, one on the hose side and one on the nozzle side, plus the swivel function built into the inlet.
M22-14mm Adapter and 1/4 in Quick Connector
The M22-14mm thread is the standard coupling on most gas pressure washers and many electric machines, so the gun attaches directly to existing hose couplings. On the outlet side the 1/4 in quick connector accepts standard plug-in nozzle tips, so switching between a narrow jet and a wider fan takes seconds and needs no tools.
3/8 in Swivel Inlet
The swivel inlet is the feature that keeps the hose from coiling. As the operator turns the gun, the inlet rotates instead of the hose, which maintains a straight water path and a stable pressure reading at the nozzle. On jobs that require constant re-aiming, this is the difference between smooth work and constantly stopping to untwist the line.
| Connection | Type | Function |
|---|---|---|
| Hose to gun | M22-14mm adapter on a 3/8 in swivel inlet | Carries full flow; swivel stops hose twist |
| Gun to nozzle | 1/4 in quick connector | Tool-free nozzle changes |
| Adapter set | Brass and stainless fittings | Matches non-standard hose ends |
| Garden hose or faucet | Not compatible | Domestic supply cannot reach the rating |
Applications of the 5000 PSI Pressure Washer Gun
The gun is an accessory, so it takes the pressure and flow of the washer it is fitted to. Typical duty ranges from domestic vehicle washing on 100-180 bar machines up to commercial cleaning stations that exploit the full 345 bar rating.
Car and Vehicle Washing
On a car wash or detailing bay the short gun is the tool for wheels, arches, grilles and lower panels, where a long lance is clumsy. It pairs naturally with a mobile machine such as the Pallas trolley car washer or a fixed station such as the LRIS wall mounted pressure washer, and it suits the Sun Series 140 bar car washer for touch-free vehicle washing.
Industrial and Workshop Cleaning
In industrial service the same gun serves machine wash-down, workshop floors, site equipment and building facades. A wall-mounted unit such as the Pallas wall mounted cleaning machine or the AR high pressure washer supplies the pressure, a wire braided high pressure hose feeds the gun, and the operator works around the object with short, aimed bursts. For heavier water blasting duty beyond this gun’s rating, dedicated equipment such as the 800 bar water blasting machine or the ultra-high-pressure 1500 bar water blasting system uses guns built for those pressures.
Usage, Safety and Maintenance
- Check that the washer’s maximum pressure and flow stay within the 5000 psi (345 bar) and 12 GPM gun rating before connecting.
- Never point the gun at people, electrical equipment or the machine itself; the jet injects water through skin at operating pressure.
- Hold the gun with both hands where practical and release the trigger before changing a nozzle tip.
- Do not connect the gun to a garden hose or faucet; domestic supply pressure cannot operate it and the connection is unsafe.
- After use, release residual pressure, disconnect and store the gun dry; inspect the trigger, swivel and quick socket periodically for wear or leaks.
- Replace worn seals and fittings with parts of the same pressure rating; a gun rated 345 bar must never be rebuilt with unlisted parts.
Frequently Asked Questions
What pressure can this trigger gun handle?
The gun is rated for a maximum working pressure of 5000 psi, equal to about 345 bar or 34.5 MPa, at flows up to 12 GPM (about 45 L/min). Any washer operating below these values is within the rating.
Why choose a short wand instead of a long lance?
A short wand gives up reach but gains control. It reaches into wheel arches, engine bays and machine frames, and the operator can turn the gun to change spray direction instantly, which is awkward with a long lance in confined areas.
Does the swivel inlet really stop the hose twisting?
Yes. The 3/8 in swivel rotates at the inlet while the gun turns, so the hose stays untwisted behind the hand. This prevents kinking and keeps the water path straight during continuous re-aiming.
Which nozzles fit the gun?
Standard 1/4 in quick-connect nozzle tips fit the brass socket at the muzzle, including the rotary nozzle shown in the product photos. Tips with other shanks need an adapter from the fitting set.
Can it be connected to a garden hose?
No. The gun is explicitly not compatible with garden hoses and faucets. It must be fed by a pressure washer hose from a machine within its rating.
Which machines is this 5000 psi pressure washer gun compatible with?
It fits most gas and electric pressure washers equipped with M22-14mm couplings, including machines in the high pressure cleaner range on this site. Confirm the hose coupling size and the machine’s pressure rating before ordering.
Related Cleaning Equipment
This 5000 psi pressure washer gun works with machines such as the Dolphin Series 500 bar electric pressure washer, pump sets like the HAWK HCPX 500 bar plunger pump and the electric pump motor unit, and marine units including the 1000 bar marine water blaster. Check each machine’s rating against the gun before use, and contact the factory for adapter sets that match non-standard hose ends.
